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Patent Searching and Data


Title:
CONTACT SPRING FOR SWITCH AND ITS MANUFACTURING METHOD
Document Type and Number:
Japanese Patent JP2006260848
Kind Code:
A
Abstract:

To provide a contact spring used for a switch such as a contact type or the like used for a mobile phone etc. which is improved in mechanical property of the circumference part of a dome.

This is a shallow dome-shaped contact spring for switching having a circumferential part 10a where a compression residual stress is made to remain by applying a compression press by a press machine or the like having a punch and die. By the remaining of this compression residual stress, mechanical property of the circumference part of the dome is improved, and durability can be greatly improved.


Inventors:
Yamamoto, Kazuhiro
Mimura, Shoji
Naoe, Kunihiro
Application Number:
JP2005000073808
Publication Date:
September 28, 2006
Filing Date:
March 15, 2005
Export Citation:
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Assignee:
FUJIKURA LTD
International Classes:
H01H5/30; H01H11/00; H01H11/04
Attorney, Agent or Firm:
石戸谷 重徳